Prioritize full clears to maximize Karthus's scaling and avoid early fights where Bel'Veth's mobility and dueling threaten tempo.
Use vision and tracking to avoid early river skirmishes and protect your first clear from Bel'Veth's medium early pressure.
Focus on leveraging Karthus's global damage and objective control after reaching level 6 and first AP item to influence fights without direct presence.
Jungle Plan
Execute efficient full clears and reset tempo quickly to reach key scaling breakpoints before contesting objectives.
Contest river control and Scuttle when your lanes have priority and can assist in counter-ganks against Bel'Veth.
Use cross-map pathing to trade camps if Bel'Veth commits to early fights, denying her scaling and objective setups.
Danger windows
Early game river fights and invades before level 6 pose high risk; avoid isolated skirmishes without lane priority.
Objective setups like Herald or Dragon fights where Bel'Veth can use true form (R) to pressure towers require cautious vision and positioning.
Low-health clears or forced smite fights without vision control increase vulnerability to Bel'Veth's mobility and dueling.
Early game
Start with a full clear path that avoids early river entrances to reduce risk from Bel'Veth's early skirmishes.
Contest Scuttle only if nearby lanes have priority to support counter-ganks and avoid isolated fights.
Avoid early invades before level 6 and first AP item to prevent losing tempo to Bel'Veth's dueling and mobility.
Power spikes
At level 6, use (R) to influence fights globally and finish low-health enemies after skirmishes.
After first AP item, cycle camps aggressively and arrive early at objectives to leverage enhanced clear speed and damage.
Respect Bel'Veth's first item spike and her ability to sustain extended fights; avoid fights where she can use (E) to absorb burst.
Win conditions
Convert fast full clears and first AP item timing into early objective control and vision dominance around Dragon and Herald.
Use (R) after enemy skirmishes to secure kills and force enemy retreats, enabling deep jungle control and counter-jungling.
Deny Bel'Veth's scaling by punishing her early clears with counter-jungling and forcing fights only when supported by lane priority.
Tip: For Karthus vs Bel'Veth, read overview, trading pattern, and danger windows first for a fast Jungle lane check.
